Anritsu BERTWave Series, Operation Manual, Page: 302 / 466

Chapter 6 How to Operate Sampling Scope
6-108
13. Click the TJ Measurement BER button to specify the BER to
measure the eye aperture with the Bathtub graph.
Set the following items as needed.
Fixed RJ, RJ Value, Correction Factor, DJ (Scale), RJ (Scale),
RJ (rms), Define Threshold, Manual Crossing
14. Click Sampling to display Sampling Run at the button display.
15. Click Graph on the Result window. Click the Graph selection buttons
to display the jitter graph.
Jitter Analysis (Advanced Jitter)
1. Click Scope.
2. Click Setup to set Sampling Mode to Advanced Jitter. Set Signal
Type to NRZ if it is displayed.
3. Click the Limit Type button to set the limitation method for data to
be measured. Proceed to step 5 when None is set.
4. Set Time, Waveforms, Sampling, or Patterns depending on the Limit
Type setting.
5. Click Time CRU.
6. Click Scale Offset tab.
7. Set Pattern Length.
When Tracking is set to On, select a PPG for Master.
When Tracking is set to Off, set the value for Length.
Note:
The larger the Pattern Length value becomes, the longer it
takes to display the measurement results. It takes up to one
minute.
8. Click Measure.
9. Click Amplitude/Time tab.
10. To select an item or items, click on the right column.
11. Click Add. The measurement item is displayed on the Result window.
12. Click Jitter of Measure Setup.
13. Click Algorithm tab.
14. When PDJ measurement is executed, click the PDJ measurement
button to set the display to On. Proceed to step 14 when Off is set.
15. Click the Standard button to specify the standard to be applied to the
PDJ measurement.
16. Click the PDJ Filter button to specify the filter to be applied to the
PDJ measurement.
For the combination of standards and filters, refer to “Table
6.2.4-5
Settable Standards for PDJ measurement and Filter Sets (Unit Hz)”.